My small contribution to this thread:-
Princess Leia’s original ‘Star Wars’ ceremonial dress could fetch $2 million at auction
Propstore’s June Hollywood Film and TV memorabilia event showcases this rare outfit.
www.space.com/princess-leia-ceremonial-dress-star-wars-auction
'Authentic screen-used “Star Wars” props, masks, weapons, models and costumes are some of the most prized mementos in the entire collector kingdom, and the sky’s often the limit for bids dropped for the final hammer price in major Hollywood memorabilia auctions.
“Star Wars” fanatics with deep pockets, or recent lottery winners, might want to check out Propstore’s upcoming live event featuring more than 1,400 pieces of rare and valuable film and TV memorabilia, which happens June 28 to June 30 in Los Angeles. One of the marquee items crossing the auction block from a galaxy far, far away is Princess Leia’s (Carrie Fisher) Ceremonial Dress Costume from “Star Wars: A New Hope.”
The certified screen-and-photo matched Ceremonial Dress Costume was worn by Fisher in the classic 1977 sci-fi film’s climactic medal presentation scene in the vast hall inside the rebel base on Yavin IV following the obliteration of the Death Star by Luke Skywalker in his trusty X-wing starfighter. Pre-sale estimates for the elegant white garment are currently running between $1 million and $2 million.’
more information is in the above linked article